Effect of Temperature on Water Transportation in Nanochannel

Zhang, Yongbin

doi:10.5098/hmt.9.16

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…It was shown that this slow flow is due to the nanoscale pore radius, the increased effective viscosity of the liquid in the confining pores and the significant non-continuum effect of the liquid across the pore radius (Zhang, 2016). It was suggested that increasing the liquid temperature can effectively improve the flow rate through nanoscale pores (Zhang, 2017a).…”

Section: Introductionmentioning

confidence: 99%

Influence of Pore Wall Surface Property on Flux of Cylindrical-Shaped Nanoporous Filtering Membrane

Zhang¹

2017

Frontiers in Heat and Mass Transfer

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The influence of pore wall surface property on the flux of a novel cylindrical-shaped nanoporous filtering membrane is analytically studied by using the flow factor approach model for a nanoscale flow. Across the thickness of the membrane are manufactured two concentric cylindrical pores with different radii. The smaller nanoscale pore is for filtration, while the other larger pore is for reducing the flow resistance. It was found that when the larger pore wall surface is hydrophobic, the interaction between the filtered liquid and the smaller pore wall surface has a very significant effect on the value of the optimum ratio of the radii of these two pores which yields the smallest flow resistance and thus the highest flux of the membrane; In the optimum working condition, the smaller pore wall surface property greatly influences the flow resistance of the membrane. It was found to be possible to manufacture the membrane with specific pore wall surface property used for filtering one liquid out of other liquids; In this membrane, the pore wall surface should be hydrophobic to the filtered liquid, while it should be highly hydrophilic to the other liquids.

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Section: Introductionmentioning

confidence: 99%

Influence of Pore Wall Surface Property on Flux of Cylindrical-Shaped Nanoporous Filtering Membrane

Zhang¹

2017

Frontiers in Heat and Mass Transfer

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“…In general, the temperature of water affects the thermal distribution of the water molecules and the stability of the hydrogen-bond network. The change of the temperature can have impact on both the static and dynamic characteristics of water, such as significantly faster water transport at higher temperature in nanochannels [13], much slower dynamics in monolayer water than those in a fully hydrated pore at ambient temperatures but the opposite at low temperature [14], and slightly higher absorbance near 3350 cm −1 for bulk water at a lower temperature [15,16]. Another example is that the temperature dependence of water dynamics shows a weak crossover from fragile behavior to strong behavior in the hydration shells of elastin-like and collagen-like peptides [17].…”

Section: Introductionmentioning

confidence: 99%

Heating anomaly of cold interfacial water under irradiation of mid-infrared pulses

Meng¹,

Yang²,

Jiang³

2022

Preprint

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The mid-infrared heating of interfacial water with different initial temperatures is studied using nonequilibrium molecular dynamics simulation. It is found that under the irradiation of a pulse at 3360-3380 cm −1 the two-dimensional water monolayer on a hydrophilic surface at a lower initial temperature acquires a much larger temperature jump. The mechanism beneath this counterintuitive phenomenon is the enhanced transition efficiency of the asymmetric OH stretching vibration due to the specific oriented configuration of water molecules at lower initial temperatures. The understanding of the anomalous phenomenon clarifies the sensitivity of the interfacial properties of water molecules to the temperature.

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“…In general, the temperature of water affects the thermal distribution of the water molecules and the stability of the hydrogen-bond network. The change of the temperature can have an impact on both the static and dynamic characteristics of water, such as significantly faster water transport at higher temperatures in nanochannels, much slower dynamics in monolayer water than those in a fully hydrated pore at ambient temperatures but the opposite at low temperatures, and slightly higher absorbance near 3350 cm –1 for bulk water at a lower temperature. , Another example is that the temperature dependence of water dynamics shows a weak crossover from fragile behavior to strong behavior in the hydration shells of elastin-like and collagen-like peptides . These interesting phenomena show that the temperature can be taken as a sensitive parameter to modulate the hydrogen-bond network and affect the properties of water.…”

Section: Introductionmentioning

confidence: 99%

Heating Anomaly of Cold Interfacial Water under Irradiation of Mid-infrared Pulses

2022

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The mid-infrared heating of interfacial water with different initial temperatures is studied using non-equilibrium molecular dynamics simulation. It is found that under the irradiation of a pulse at 3360−3380 cm −1 , the two-dimensional water monolayer on a hydrophilic surface at a lower initial temperature acquires a much larger temperature jump. The mechanism beneath this counterintuitive phenomenon is the enhanced transition efficiency of the asymmetric OH stretching vibration due to the specific oriented configuration of water molecules at lower initial temperatures. The understanding of the anomalous phenomenon clarifies the sensitivity of the interfacial properties of water molecules to the temperature.

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Effect of Temperature on Water Transportation in Nanochannel

Cited by 3 publications

References 13 publications

Influence of Pore Wall Surface Property on Flux of Cylindrical-Shaped Nanoporous Filtering Membrane

Influence of Pore Wall Surface Property on Flux of Cylindrical-Shaped Nanoporous Filtering Membrane

Heating anomaly of cold interfacial water under irradiation of mid-infrared pulses

Heating Anomaly of Cold Interfacial Water under Irradiation of Mid-infrared Pulses

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